Time division multiplexing system for N channels in a frame unit

Multiplex communications – Wide area network – Packet switching

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370 84, H04J 307

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048254363

ABSTRACT:
A time division multiplexed signal demultiplexing system for regenerating original signals from a time division multiplexed signal which is obtained by time-division multiplexing information signals of N channels with mutually different sampling or clock frequencies by means of a reference clock signal of a frequency equal to N times of the highest one of the sampling or clock frequencies or an even higher frequency and inserting a dummy signal and a dummy flag bit in pairs in the portion where the information signal is lacking.

REFERENCES:
patent: 4132862 (1979-01-01), Ferret et al.
patent: 4347620 (1982-08-01), Black et al.
"Technology of PCM Communication" by N. Kaneko, pp. 118-122, Aug. 30, 1976.

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